





























Recent Purchase
ntj***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$1219.04
37 days ago
gyo***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$609.52
6 days ago
rzu***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$4266.64
2 days ago
qqj***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$1219.04
35 days ago
zzv***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$4876.16
22 days ago
ubv***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$6095.20
44 days ago
ecu***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$4876.16
45 days ago
jzf***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$1828.56
36 days ago
les***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$5485.68
11 days ago
tar***
Accuracy:±3% F.S.;Measurement Range:0-100%VOL;
$4266.64
42 days ago
View All
Customer Reviews
Average Rating
5.0





5.0
2 global ratings
5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
All Reviews
Image
Recommend
Recent
1***m

Helpful (3)
OKWISHING is a great way to save money without sacrificing quality.
Feb.22.2025

Helpful (3)
Feb.22.2025
1***m

Helpful (2)
Tengo poco de comprar en OKWISHING pero a sido muy buena experiencia ya que todo lo que he pedido a salido muy bonito y de buena calidad, no me gustaba pefir en linea pero con OKWISHING no me arrepiento
Feb.26.2025

Helpful (2)
Feb.26.2025
- 1
Safewill ES20B so2 analyzer 5000ppm O2 Purity Tester Oxygen Analyzer 0-100%VOL 0-30%VOL hydrogen analyzer Portable Gas detector
$360$609.52-40.94%
Accuracy:
±3% F.S.
Measurement Range:
0-100%VOL
Quantity:
Add to Cart
Wishlist
Features
Safewill ES20B SO2 Analyzer & Oxygen Purity Tester
Ultra-Precise Gas Detection
Detects SO2 levels up to 5000ppm and oxygen purity from 0-100%VOL with lab-grade accuracy. Ideal for industrial safety, environmental monitoring, and lab research.
Robust Portable Design
Features a lightweight yet durable ABS housing with shock-resistant casing for on-site testing in harsh environments like factories, mines, and chemical plants.
Multi-Gas Versatility
Doubles as a hydrogen analyzer (0-30%VOL) and general gas detector. Perfect for HVAC maintenance, medical oxygen validation, and leak detection.
User-Friendly Operation
Equipped with a crisp LCD display, one-button calibration, and instant alarms for超标 readings. Powered by rechargeable lithium batteries for 12+ hours of continuous use.
Certified & Reliable
CE/RoHS compliant with auto-temperature compensation. Includes a 24-month warranty and global voltage support (100-240V).
Bulk Discounts Available
Wholesale pricing for industrial buyers—contact for fleet orders. Ships globally with DDP logistics.
See More